Catalyst 3750 Switch Software Configuration Guide, 12.2(35)SE
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Index

Table Of Contents

Numerics - A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X -

Index

Numerics

10-Gigabit Ethernet interfaces

configuration guidelines 11-17

defined 11-6

3750G integrated wireless LAN controller switch

configuring the switch A-4

controller and switch interaction A-3

internal ports

configuring A-4

reconfiguring A-5

stacking A-1

A

AAA down policy, NAC Layer 2 IP validation 1-9

abbreviating commands 2-4

ABRs 35-25

AC (command switch) 6-10

access

templates 8-1

access-class command 32-20

access control entries

See ACEs

access-denied response, VMPS 13-28

access groups

applying IPv4 ACLs to interfaces 32-21

Layer 2 32-21

Layer 3 32-21

accessing

clusters, switch 6-13

command switches 6-11

member switches 6-13

switch clusters 6-13

accessing stack members 5-25

access lists

See ACLs

access ports

and Layer 2 protocol tunneling 17-11

defined 11-3

in switch clusters 6-9

access template 8-1

accounting

with 802.1x 10-33

with IEEE 802.1x 10-9

with RADIUS 9-28

with TACACS+ 9-11, 9-17

ACEs

and QoS 33-7

defined 32-2

Ethernet 32-2

IP 32-2

ACLs

ACEs 32-2

any keyword 32-13

applying

on bridged packets 32-38

on multicast packets 32-40

on routed packets 32-39

on switched packets 32-38

time ranges to 32-17

to an interface 32-20, 38-7

to IPv6 interfaces 38-7

to QoS 33-7

classifying traffic for QoS 33-44

comments in 32-19

compiling 32-22

defined 32-1, 32-7

examples of 32-22, 33-44

extended IP

configuring for QoS classification 33-45

extended IPv4

creating 32-11

matching criteria 32-8

hardware and software handling 32-22

host keyword 32-13

IP

creating 32-7

fragments and QoS guidelines 33-33

implicit deny 32-10, 32-14, 32-16

implicit masks 32-10

matching criteria 32-8

undefined 32-21

IPv4

applying to interfaces 32-20

creating 32-7

matching criteria 32-8

named 32-15

numbers 32-8

terminal lines, setting on 32-19

unsupported features 32-7

IPv6

and stacking 38-3

applying to interfaces 38-7

configuring 38-4, 38-5

displaying 38-8

interactions with other features 38-4

limitations 38-3

matching criteria 38-3

named 38-3

precedence of 38-2

supported 38-2

unsupported features 38-3

Layer 4 information in 32-37

logging messages 32-9

MAC extended 32-27, 33-46

matching 32-7, 32-21, 38-3

monitoring 32-40, 38-8

named

IPv6 38-3

named, IPv4 32-15

names 38-4

number per QoS class map 33-33

port 32-2, 38-1

precedence of 32-2

QoS 33-7, 33-44

resequencing entries 32-15

router 32-2, 38-1

router ACLs and VLAN map configuration guidelines 32-37

standard IP, configuring for QoS classification 33-44

standard IPv4

creating 32-10

matching criteria 32-8

support for 1-8

support in hardware 32-22

time ranges 32-17

types supported 32-2

unsupported features

IPv6 38-3

unsupported features, IPv4 32-7

using router ACLs with VLAN maps 32-36

VLAN maps

configuration guidelines 32-30

configuring 32-29

active links 21-2

active router 39-1

address aliasing 24-2

addresses

displaying the MAC address table 7-27

dynamic

accelerated aging 18-9

changing the aging time 7-21

default aging 18-9

defined 7-19

learning 7-20

removing 7-22

MAC, discovering 7-27

multicast

group address range 40-3

STP address management 18-9

static

adding and removing 7-24

defined 7-19

address resolution 7-27, 35-9

Address Resolution Protocol

See ARP

adjacency tables, with CEF 35-75

administrative distances

defined 35-87

OSPF 35-32

routing protocol defaults 35-77

advanced IP services image 36-1

advertisements

CDP 26-1

RIP 35-20

VTP 13-19, 14-3

aggregatable global unicast addresses 36-3

aggregate addresses, BGP 35-59

aggregated ports

See EtherChannel

aggregate policers 33-59

aggregate policing 1-10

aggregator template 5-10, 8-1

aging, accelerating 18-9

aging time

accelerated

for MSTP 19-23

for STP 18-9, 18-23

MAC address table 7-21

maximum

for MSTP 19-24

for STP 18-23, 18-24

alarms, RMON 29-3

allowed-VLAN list 13-21

area border routers

See ABRs

ARP

configuring 35-10

defined 1-5, 7-27, 35-9

encapsulation 35-11

static cache configuration 35-10

table

address resolution 7-27

managing 7-27

ASBRs 35-25

AS-path filters, BGP 35-54

asymmetrical links, and IEEE 802.1Q tunneling 17-4

attributes, RADIUS

vendor-proprietary 9-31

vendor-specific 9-29

audience xliii

authentication

EIGRP 35-40

HSRP 39-9

local mode with AAA 9-36

NTP associations 7-4

RADIUS

key 9-21

login 9-23

TACACS+

defined 9-11

key 9-13

login 9-14

See also port-based authentication

authentication failed VLAN

See restricted VLAN

authentication keys, and routing protocols 35-88

authoritative time source, described 7-2

authorization

with RADIUS 9-27

with TACACS+ 9-11, 9-16

authorized ports with IEEE 802.1x 10-7

autoconfiguration 3-3

automatic advise (auto-advise) in switch stacks 5-12

automatic copy (auto-copy) in switch stacks 5-11

automatic discovery

considerations

beyond a noncandidate device 6-8

brand new switches 6-9

connectivity 6-5

different VLANs 6-7

management VLANs 6-7

non-CDP-capable devices 6-6

noncluster-capable devices 6-6

routed ports 6-8

in switch clusters 6-5

See also CDP

automatic extraction (auto-extract) in switch stacks 5-11

automatic QoS

See QoS

automatic recovery, clusters 6-10

See also HSRP

automatic upgrades (auto-upgrade) in switch stacks 5-11

auto-MDIX

configuring 11-21

described 11-20

autonegotiation

duplex mode 1-4

interface configuration guidelines 11-18

mismatches 43-12

autonomous system boundary routers

See ASBRs

autonomous systems, in BGP 35-47

Auto-RP, described 40-5

autosensing, port speed 1-4

auxiliary VLAN

See voice VLAN

availability, features 1-6

B

BackboneFast

described 20-7

disabling 20-17

enabling 20-16

support for 1-6

backup interfaces

See Flex Links

backup links 21-2

banners

configuring

login 7-19

message-of-the-day login 7-18

default configuration 7-17

when displayed 7-17

BGP

aggregate addresses 35-59

aggregate routes, configuring 35-59

CIDR 35-59

clear commands 35-63

community filtering 35-56

configuring neighbors 35-58

default configuration 35-45

described 35-44

enabling 35-47

BGP

monitoring 35-63

multipath support 35-51

neighbors, types of 35-47

path selection 35-51

peers, configuring 35-58

prefix filtering 35-55

resetting sessions 35-50

route dampening 35-62

route maps 35-53

route reflectors 35-61

routing domain confederation 35-60

routing session with multi-VRF CE 35-69

show commands 35-63

supernets 35-59

support for 1-11

Version 4 35-44

binding cluster group and HSRP group 39-11

binding database

address, DHCP server

See DHCP, Cisco IOS server database

DHCP snooping

See DHCP snooping binding database

bindings

address, Cisco IOS DHCP server 22-6

DHCP snooping database 22-7

IP source guard 22-16

binding table, DHCP snooping

See DHCP snooping binding database

blocking packets 25-7

Boolean expressions in tracked lists 39-14

booting

boot loader, function of 3-2

boot process 3-2

manually 3-13

specific image 3-14

boot loader

accessing 3-15

described 3-2

environment variables 3-15

prompt 3-15

trap-door mechanism 3-2

bootstrap router (BSR), described 40-5

Border Gateway Protocol

See BGP

BPDU

error-disabled state 20-2

filtering 20-3

RSTP format 19-12

BPDU filtering

described 20-3

disabling 20-15

enabling 20-14

support for 1-7

BPDU guard

described 20-2

disabling 20-14

enabling 20-13

support for 1-7

bridged packets, ACLs on 32-38

bridge groups

See fallback bridging

bridge protocol data unit

See BPDU

broadcast flooding 35-17

broadcast packets

directed 35-14

flooded 35-14

broadcast storm-control command 25-4

broadcast storms 25-1, 35-14

C

cables, monitoring for unidirectional links 27-1

candidate switch

automatic discovery 6-5

defined 6-4

requirements 6-4

See also command switch, cluster standby group, and member switch

Catalyst 3750G wireless LAN controller switch

accessing the controller A-6

displaying controller information A-7

features A-2

interaction with the controller A-3

internal port configuration A-4

internal port EtherChannel A-4

internal ports A-3

internal VLAN A-3

reconfiguring the internal ports A-5

switch stacks A-2

CA trustpoint

configuring 9-45

defined 9-43

caution, described xliv

CDP

and trusted boundary 33-39

automatic discovery in switch clusters 6-5

configuring 26-2

default configuration 26-2

described 26-1

disabling for routing device26-3to 26-4

enabling and disabling

on an interface 26-4

on a switch 26-3

Layer 2 protocol tunneling 17-8

monitoring 26-5

overview 26-1

power negotiation extensions 11-7

support for 1-5

CDP

switch stack considerations 26-2

transmission timer and holdtime, setting 26-2

updates 26-2

CEF

defined 35-75

distributed 35-75

enabling 35-76

IPv6 36-15

CGMP

as IGMP snooping learning method 24-9

clearing cached group entries 40-51

enabling server support 40-34

joining multicast group 24-3

overview 40-8

server support only 40-8

switch support of 1-4

CIDR 35-59

CipherSuites 9-44

Cisco 7960 IP Phone 15-1

Cisco Discovery Protocol

See CDP

Cisco Express Forwarding

See CEF

Cisco Group Management Protocol

See CGMP

Cisco intelligent power management 11-7

Cisco IOS DHCP server

See DHCP, Cisco IOS DHCP server

Cisco IOS File System

See IFS

Cisco Network Assistant

See Network Assistant

Cisco StackWise technology 1-3

See also stacks, switch

CiscoWorks 2000 1-5, 31-4

CIST regional root

See MSTP

CIST root

See MSTP

classless interdomain routing

See CIDR

classless routing 35-8

class maps for QoS

configuring 33-47

described 33-7

displaying 33-79

class of service

See CoS

clearing interfaces 11-30

CLI

abbreviating commands 2-4

command modes 2-1

configuration logging 2-5

described 1-5

editing features

enabling and disabling 2-7

keystroke editing 2-7

wrapped lines 2-9

error messages 2-5

filtering command output 2-10

getting help 2-3

history

changing the buffer size 2-6

described 2-6

disabling 2-7

recalling commands 2-6

managing clusters 6-16

no and default forms of commands 2-4

client mode, VTP 14-3

client processes, tracking 39-12

clock

See system clock

cluster requirements xlv

clusters, switch

accessing 6-13

automatic discovery 6-5

automatic recovery 6-10

benefits 1-2

compatibility 6-4

described 6-1

LRE profile considerations 6-16

managing

through CLI 6-16

through SNMP 6-17

planning 6-4

planning considerations

automatic discovery 6-5

automatic recovery 6-10

CLI 6-16

host names 6-13

IP addresses 6-13

LRE profiles 6-16

passwords 6-14

RADIUS 6-16

SNMP 6-14, 6-17

switch stacks 6-15

TACACS+ 6-16

See also candidate switch, command switch, cluster standby group, member switch, and standby command switch

cluster standby group

and HSRP group 39-11

automatic recovery 6-12

considerations 6-11

defined 6-2

requirements 6-3

virtual IP address 6-11

See also HSRP

CNS 1-5

Configuration Engine

configID, deviceID, hostname 4-3

configuration service 4-2

described 4-1

event service 4-3

embedded agents

described 4-5

enabling automated configuration 4-6

enabling configuration agent 4-9

enabling event agent 4-8

management functions 1-5

Coarse Wave Division Multiplexer

See CWDM SFPs

command-line interface

See CLI

command modes 2-1

commands

abbreviating 2-4

no and default 2-4

commands, setting privilege levels 9-8

command switch

accessing 6-11

active (AC) 6-10

configuration conflicts 43-12

defined 6-2

passive (PC) 6-10

password privilege levels 6-17

priority 6-10

recovery

from command-switch failure 6-10, 43-8

from lost member connectivity 43-12

redundant 6-10

replacing

with another switch 43-11

with cluster member 43-9

requirements 6-3

standby (SC) 6-10

See also candidate switch, cluster standby group, member switch, and standby command switch

community list, BGP 35-57

community ports 16-2

community strings

configuring 6-14, 31-8

for cluster switches 31-4

in clusters 6-14

overview 31-4

SNMP 6-14

community VLANs 16-2, 16-3

compatibility, feature 25-11

compatibility, software

See stacks, switch

config.text 3-12

configurable leave timer, IGMP 24-6

configuration, initial

defaults 1-12

Express Setup 1-2

See also getting started guide and hardware installation guide

configuration changes, logging 30-11

configuration conflicts, recovering from lost member connectivity 43-12

configuration examples, network 1-15

configuration files

clearing the startup configuration C-19

creating using a text editor C-10

default name 3-12

deleting a stored configuration C-19

described C-8

downloading

automatically 3-12

preparing C-10, C-13, C-16

reasons for C-8

using FTP C-13

using RCP C-17

using TFTP C-11

guidelines for creating and using C-9

invalid combinations when copying C-5

limiting TFTP server access 31-16

obtaining with DHCP 3-7

password recovery disable considerations 9-5

specifying the filename 3-12

system contact and location information 31-15

types and location C-10

uploading

preparing C-10, C-13, C-16

reasons for C-9

using FTP C-14

using RCP C-18

using TFTP C-12

configuration guidelines, multi-VRF CE 35-67

configuration logger 30-11

configuration logging 2-5

configuration settings, saving 3-10

configure terminal command 11-11

config-vlan mode 2-2, 13-7

conflicts, configuration 43-12

connections, secure remote 9-38

connectivity problems 43-14, 43-16, 43-17

consistency checks in VTP Version 2 14-4

console port, connecting to 2-11

conventions

command xliv

for examples xliv

publication xliv

text xliv

corrupted software, recovery steps with Xmodem 43-2

CoS

in Layer 2 frames 33-2

override priority 15-6

trust priority 15-6

CoS input queue threshold map for QoS 33-16

CoS output queue threshold map for QoS 33-19

CoS-to-DSCP map for QoS 33-61

counters, clearing interface 11-30

crashinfo file 43-24

critical authentication, IEEE 802.1x 10-37

cross-stack EtherChannel

configuration guidelines 34-13

configuring

on Layer 2 interfaces 34-13

on Layer 3 physical interfaces 34-16

described 34-3

illustration 34-4

support for 1-6

cross-stack UplinkFast, STP

described 20-5

disabling 20-16

enabling 20-16

fast-convergence events 20-7

Fast Uplink Transition Protocol 20-6

normal-convergence events 20-7

support for 1-6

cryptographic software image

Kerberos 9-32

SSH 9-37

SSL 9-42

switch stack considerations 5-2, 5-16, 9-38

customer edge devices 35-65

CWDM SFPs 1-26

D

daylight saving time 7-13

dCEF

in the switch stack 35-75

debugging

enabling all system diagnostics 43-21

enabling for a specific feature 43-20

redirecting error message output 43-21

using commands 43-20

default commands 2-4

default configuration

802.1x 10-22

auto-QoS 33-20

banners 7-17

BGP 35-45

booting 3-12

CDP 26-2

DHCP 22-8

DHCP option 82 22-9

DHCP snooping 22-9

DHCP snooping binding database 22-9

DNS 7-16

dynamic ARP inspection 23-5

EIGRP 35-36

EtherChannel 34-11

Ethernet interfaces 11-15

fallback bridging 42-4

Flex Links 21-4

HSRP 39-5

IEEE 802.1Q tunneling 17-4

IGMP 40-28

IGMP filtering 24-25

IGMP snooping 24-7, 37-5, 37-6

IGMP throttling 24-25

initial switch information 3-3

IP addressing, IP routing 35-6

IP multicast routing 40-9

IP source guard 22-17

IPv6 36-11

Layer 2 interfaces 11-15

Layer 2 protocol tunneling 17-11

MAC address table 7-21

MAC address-table move update 21-4

MSDP 41-4

MSTP 19-15

multi-VRF CE 35-67

MVR 24-20

NTP 7-4

optional spanning-tree configuration 20-12

OSPF 35-26

password and privilege level 9-2

PIM 40-9

private VLANs 16-7

RADIUS 9-20

RIP 35-20

RMON 29-3

RSPAN 28-11

SDM template 8-5

SNMP 31-7

SPAN 28-11

SSL 9-44

standard QoS 33-31

STP 18-13

switch stacks 5-19

system message logging 30-4

system name and prompt 7-15

TACACS+ 9-13

UDLD 27-4

VLAN, Layer 2 Ethernet interfaces 13-19

VLANs 13-8

VMPS 13-29

voice VLAN 15-3

VTP 14-7

default gateway 3-10, 35-12

default networks 35-78

default routes 35-78

default routing 35-3

deleting VLANs 13-10

denial-of-service attack 25-1

description command 11-24

designing your network, examples 1-15

desktop template 5-10, 8-1

destination addresses

in IPv6 ACLs 38-5

destination addresses, in IPv4 ACLs 32-12

destination-IP address-based forwarding, EtherChannel 34-9

destination-MAC address forwarding, EtherChannel 34-8

detecting indirect link failures, STP 20-8

device C-19

device discovery protocol 26-1

device manager

benefits 1-2

described 1-2, 1-5

in-band management 1-6

requirements xliv

upgrading a switch C-19

DHCP

Cisco IOS server database

configuring 22-14

default configuration 22-9

described 22-6

enabling

relay agent 22-11

server 22-10

DHCP-based autoconfiguration

client request message exchange 3-4

configuring

client side 3-4

DNS 3-6

relay device 3-7

server side 3-5

server-side 22-10

TFTP server 3-6

example 3-8

lease options

for IP address information 3-5

for receiving the configuration file 3-5

overview 3-3

relationship to BOOTP 3-4

relay support 1-5, 1-11

support for 1-5

DHCP binding database

See DHCP snooping binding database

DHCP binding table

See DHCP snooping binding database

DHCP option 82

circuit ID suboption 22-5

configuration guidelines 22-9

default configuration 22-8

displaying 22-16

forwarding address, specifying 22-11

helper address 22-11

overview 22-3

packet format, suboption

circuit ID 22-5

remote ID 22-5

remote ID suboption 22-5

DHCP snooping

accepting untrusted packets form edge switch 22-3, 22-13

and private VLANs 22-14

binding database

See DHCP snooping binding database

configuration guidelines 22-9

default configuration 22-8

displaying binding tables 22-16

message exchange process 22-4

option 82 data insertion 22-3

trusted interface 22-2

untrusted interface 22-2

untrusted messages 22-2

DHCP snooping binding database

adding bindings 22-15

binding file

format 22-7

location 22-7

bindings 22-7

clearing agent statistics 22-15

configuration guidelines 22-10

configuring 22-15

default configuration 22-8, 22-9

deleting

binding file 22-15

bindings 22-15

database agent 22-15

described 22-7

displaying 22-16

binding entries 22-16

status and statistics 22-16

enabling 22-15

entry 22-7

renewing database 22-15

resetting

delay value 22-15

timeout value 22-15

DHCP snooping binding table

See DHCP snooping binding database

Differentiated Services architecture, QoS 33-2

Differentiated Services Code Point 33-2

Diffusing Update Algorithm (DUAL) 35-35

directed unicast requests 1-5

directories

changing C-4

creating and removing C-4

displaying the working C-4

discovery, clusters

See automatic discovery

Distance Vector Multicast Routing Protocol

See DVMRP

distance-vector protocols 35-3

distribute-list command 35-87

DNS

and DHCP-based autoconfiguration 3-6

default configuration 7-16

displaying the configuration 7-17

in IPv6 36-4

overview 7-15

setting up 7-16

support for 1-5

documentation, related xliv

document conventions xliv

domain names

DNS 7-15

VTP 14-8

Domain Name System

See DNS

dot1q-tunnel switchport mode 13-18

double-tagged packets

IEEE 802.1Q tunneling 17-2

Layer 2 protocol tunneling 17-10

downloading

configuration files

preparing C-10, C-13, C-16

reasons for C-8

using FTP C-13

using RCP C-17

using TFTP C-11

image files

deleting old image C-24

preparing C-22, C-25, C-30

reasons for C-19

using CMS 1-3

using FTP C-26

using HTTP 1-3, C-19

using RCP C-31

using TFTP C-22

using the device manager or Network Assistant C-19

drop threshold for Layer 2 protocol packets 17-11

DSCP 1-10, 33-2

DSCP input queue threshold map for QoS 33-16

DSCP output queue threshold map for QoS 33-19

DSCP-to-CoS map for QoS 33-64

DSCP-to-DSCP-mutation map for QoS 33-65

DSCP transparency 33-40

DTP 1-7, 13-17

DUAL finite state machine, EIGRP 35-35

dual IPv4 and IPv6 templates 8-2, 36-1, 36-9

dual protocol stacks

configuring 36-13

IPv4 and IPv6 36-9

SDM templates supporting 36-9

DVMRP

autosummarization

configuring a summary address 40-48

disabling 40-50

connecting PIM domain to DVMRP router 40-40

enabling unicast routing 40-43

interoperability

with Cisco devices 40-38

with Cisco IOS software 40-7

mrinfo requests, responding to 40-43

neighbors

advertising the default route to 40-42

discovery with Probe messages 40-38

displaying information 40-43

prevent peering with nonpruning 40-46

rejecting nonpruning 40-44

overview 40-7

routes

adding a metric offset 40-50

advertising all 40-50

advertising the default route to neighbors 40-42

caching DVMRP routes learned in report messages 40-44

changing the threshold for syslog messages 40-47

deleting 40-51

displaying 40-52

favoring one over another 40-50

limiting the number injected into MBONE 40-47

limiting unicast route advertisements 40-38

routing table 40-8

source distribution tree, building 40-8

support for 1-11

tunnels

configuring 40-40

displaying neighbor information 40-43

dynamic access ports

characteristics 13-3

configuring 13-31

defined 11-3

dynamic addresses

See addresses

dynamic ARP inspection

ARP cache poisoning 23-1

ARP requests, described 23-1

ARP spoofing attack 23-1

clearing

log buffer 23-15

statistics 23-15

configuration guidelines 23-6

configuring

ACLs for non-DHCP environments 23-8

in DHCP environments 23-7

log buffer 23-12

rate limit for incoming ARP packets 23-4, 23-10

default configuration 23-5

denial-of-service attacks, preventing 23-10

described 23-1

DHCP snooping binding database 23-2

displaying

ARP ACLs 23-14

configuration and operating state 23-14

log buffer 23-15

statistics 23-15

trust state and rate limit 23-14

error-disabled state for exceeding rate limit 23-4

function of 23-2

interface trust states 23-3

log buffer

clearing 23-15

configuring 23-12

displaying 23-15

logging of dropped packets, described 23-5

man-in-the middle attack, described 23-2

network security issues and interface trust states 23-3

priority of ARP ACLs and DHCP snooping entries 23-4

rate limiting of ARP packets

configuring 23-10

described 23-4

error-disabled state 23-4

statistics

clearing 23-15

displaying 23-15

validation checks, performing 23-11

dynamic auto trunking mode 13-18

dynamic desirable trunking mode 13-18

Dynamic Host Configuration Protocol

See DHCP-based autoconfiguration

dynamic port VLAN membership

described 13-29

reconfirming 13-31

troubleshooting 13-33

types of connections 13-31

dynamic routing 35-3

Dynamic Trunking Protocol

See DTP

E

EBGP 35-43

editing features

enabling and disabling 2-7

keystrokes used 2-7

wrapped lines 2-9

EIGRP

authentication 35-40

components 35-35

configuring 35-39

default configuration 35-36

definition 35-35

interface parameters, configuring 35-40

monitoring 35-42

stub routing 35-41

support for 1-11

elections

See stack master

enable password 9-3

enable secret password 9-3

encryption, CipherSuite 9-44

encryption for passwords 9-3

Enhanced IGRP

See EIGRP

enhanced object tracking

commands 39-12

defined 39-12

HSRP 39-17

IP routing state 39-13

line-protocol state 39-13

tracked lists 39-14

environment variables, function of 3-16

equal-cost routing 1-11, 35-76

error-disabled state

BPDU 20-2

error messages during command entry 2-5

EtherChannel

automatic creation of 34-5, 34-7

channel groups

binding physical and logical interfaces 34-4

numbering of 34-4

configuration guidelines 34-12

configuring

Layer 2 interfaces 34-13

Layer 3 physical interfaces 34-16

Layer 3 port-channel logical interfaces 34-15

default configuration 34-11

described 34-2

displaying status 34-23

forwarding methods 34-8, 34-18

IEEE 802.3ad, described 34-7

interaction

with STP 34-12

with VLANs 34-12

LACP

described 34-7

displaying status 34-23

hot-standby ports 34-20

interaction with other features 34-7

modes 34-7

port priority 34-22

system priority 34-21

Layer 3 interface 35-5

load balancing 34-8, 34-18

logical interfaces, described 34-4

PAgP

aggregate-port learners 34-19

compatibility with Catalyst 1900 34-19

described 34-5

displaying status 34-23

interaction with other features 34-6

learn method and priority configuration 34-19

modes 34-6

support for 1-4

port-channel interfaces

described 34-4

numbering of 34-4

port groups 11-6

stack changes, effects of 34-10

support for 1-4

EtherChannel guard

described 20-10

disabling 20-17

enabling 20-17

Ethernet VLANs

adding 13-9

defaults and ranges 13-8

modifying 13-9

EUI 36-3

events, RMON 29-3

examples

conventions for xliv

network configuration 1-15

expedite queue for QoS 33-78

Express Setup 1-2

See also getting started guide

extended crashinfo file 43-24

extended-range VLANs

configuration guidelines 13-13

configuring 13-12

creating 13-14

creating with an internal VLAN ID 13-15

defined 13-1

extended system ID

MSTP 19-17

STP 18-4, 18-16

extended universal identifier

See EUI

Extensible Authentication Protocol over LAN 10-1

external BGP

See EBGP

external neighbors, BGP 35-47

F

fa0 interface 1-6

failover support 1-6

fallback bridging

and protected ports 42-4

bridge groups

creating 42-4

described 42-2

displaying 42-11

function of 42-2

number supported 42-5

removing 42-5

bridge table

clearing 42-11

displaying 42-11

configuration guidelines 42-4

connecting interfaces with 11-10

default configuration 42-4

described 42-1

frame forwarding

flooding packets 42-2

forwarding packets 42-2

overview 42-1

protocol, unsupported 42-4

stack changes, effects of 42-3

STP

disabling on an interface 42-10

forward-delay interval 42-9

hello BPDU interval 42-8

interface priority 42-7

keepalive messages 18-2

maximum-idle interval 42-9

path cost 42-7

VLAN-bridge spanning-tree priority 42-6

VLAN-bridge STP 42-2

support for 1-11

SVIs and routed ports 42-2

unsupported protocols 42-4

VLAN-bridge STP 18-11

Fast Uplink Transition Protocol 20-6

features, incompatible 25-11

FIB 35-75

fiber-optic, detecting unidirectional links 27-1

files

basic crashinfo

description 43-24

location 43-24

copying C-5

crashinfo

description 43-24

deleting C-5

displaying the contents of C-8

extended crashinfo

description 43-24

location 43-25

tar

creating C-6

displaying the contents of C-7

extracting C-7

image file format C-20

file system

displaying available file systems C-2

displaying file information C-3

local file system names C-1

network file system names C-5

setting the default C-3

filtering

in a VLAN 32-29

IPv6 traffic 38-4, 38-7

non-IP traffic 32-27

show and more command output 2-10

filtering show and more command output 2-10

filters, IP

See ACLs, IP

flash device, number of C-1

Flex Links

configuration guidelines 21-4

configuring 21-5

default configuration 21-4

description 21-1

monitoring 21-9

flooded traffic, blocking 25-7

flow-based packet classification 1-10

flowcharts

QoS classification 33-6

QoS egress queueing and scheduling 33-17

QoS ingress queueing and scheduling 33-15

QoS policing and marking 33-10

flowcontrol

configuring 11-20

described 11-19

forward-delay time

MSTP 19-23

STP 18-23

Forwarding Information Base

See FIB

forwarding nonroutable protocols 42-1

FTP

accessing MIB files B-3

configuration files

downloading C-13

overview C-12

preparing the server C-13

uploading C-14

image files

deleting old image C-28

downloading C-26

preparing the server C-25

uploading C-28

G

get-bulk-request operation 31-3

get-next-request operation 31-3, 31-5

get-request operation 31-3, 31-5

get-response operation 31-3

Gigabit modules

See SFPs

global configuration mode 2-2

global leave, IGMP 24-13

guest VLAN and 802.1x 10-13

guide

audience xliii

purpose of xliii

guide mode 1-3

GUIs

See device manager and Network Assistant

H

hardware limitations and Layer 3 interfaces 11-25

hello time

MSTP 19-22

STP 18-22

help, for the command line 2-3

hierarchical policy maps 33-8

configuration guidelines 33-33

configuring 33-53

described 33-11

history

changing the buffer size 2-6

described 2-6

disabling 2-7

recalling commands 2-6

history table, level and number of syslog messages 30-10

host names

in clusters 6-13

host ports

configuring 16-12

kinds of 16-2

hosts, limit on dynamic ports 13-33

Hot Standby Router Protocol

See HSRP

HP OpenView 1-5

HSRP

authentication string 39-9

automatic cluster recovery 6-12

binding to cluster group 39-11

cluster standby group considerations 6-11

command-switch redundancy 1-1, 1-6

configuring 39-4

default configuration 39-5

definition 39-1

guidelines 39-5

monitoring 39-11

object tracking 39-17

overview 39-1

priority 39-7

routing redundancy 1-11

support for ICMP redirect messages 39-11

switch stack considerations 39-4

timers 39-9

tracking 39-7

See also clusters, cluster standby group, and standby command switch

HTTP over SSL

see HTTPS

HTTPS 9-42

configuring 9-46

self-signed certificate 9-43

HTTP secure server 9-42

I

IBPG 35-43

ICMP

IPv6 36-4

redirect messages 35-12

support for 1-11

time-exceeded messages 43-18

traceroute and 43-18

unreachable messages 32-20

unreachable messages and IPv6 38-4

unreachables and ACLs 32-22

ICMP ping

executing 43-15

overview 43-14

ICMP Router Discovery Protocol

See IRDP

ICMPv6 36-4

IDS appliances

and ingress RSPAN 28-22

and ingress SPAN 28-15

IEEE 802.1D

See STP

IEEE 802.1p 15-1

IEEE 802.1Q

and trunk ports 11-3

configuration limitations 13-19

encapsulation 13-16

native VLAN for untagged traffic 13-23

tunneling

compatibility with other features 17-6

defaults 17-4

described 17-1

tunnel ports with other features 17-6

IEEE 802.1s

See MSTP

IEEE 802.1w

See RSTP

IEEE 802.1x

See port-based authentication

IEEE 802.3ad

See EtherChannel

IEEE 802.3af

See PoE

IEEE 802.3x flow control 11-19

ifIndex values, SNMP 31-6

IFS 1-6

IGMP

configurable leave timer

described 24-6

enabling 24-12

configuring the switch

as a member of a group 40-28

statically connected member 40-33

controlling access to groups 40-29

default configuration 40-28

deleting cache entries 40-52

displaying groups 40-52

fast switching 40-33

flooded multicast traffic

controlling the length of time 24-13

disabling on an interface 24-14

global leave 24-13

query solicitation 24-13

recovering from flood mode 24-13

host-query interval, modifying 40-31

joining multicast group 24-3

join messages 24-3

leave processing, enabling 24-11, 37-9

leaving multicast group 24-5

multicast reachability 40-28

overview 40-3

queries 24-4

report suppression

described 24-6

disabling 24-16, 37-11

supported versions 24-3

support for 1-4

Version 1

changing to Version 2 40-30

described 40-3

Version 2

changing to Version 1 40-30

described 40-3

maximum query response time value 40-32

pruning groups 40-32

query timeout value 40-31

IGMP filtering

configuring 24-25

default configuration 24-25

described 24-24

monitoring 24-29

support for 1-4

IGMP groups

configuring filtering 24-28

setting the maximum number 24-27

IGMP Immediate Leave

configuration guidelines 24-12

described 24-6

enabling 24-11

IGMP profile

applying 24-26

configuration mode 24-25

configuring 24-26

IGMP snooping

and address aliasing 24-2

and stack changes 24-7

configuring 24-7

default configuration 24-7, 37-5, 37-6

definition 24-2

enabling and disabling 24-8, 37-6

global configuration 24-8

Immediate Leave 24-6

in the switch stack 24-7

method 24-9

monitoring 24-16, 37-11

querier

configuration guidelines 24-15

configuring 24-15

supported versions 24-3

support for 1-4

VLAN configuration 24-8

IGMP throttling

configuring 24-28

default configuration 24-25

described 24-25

displaying action 24-29

IGP 35-25

Immediate Leave, IGMP 24-6

enabling 37-9

inaccessible authentication bypass 10-15

initial configuration

defaults 1-12

Express Setup 1-2

See also getting started guide and hardware installation guide

integrated wireless LAN controller switch

see 3750G integrated wireless LAN controller switch

interface

number 11-10

range macros 11-13

interface command11-10to 11-11

interface configuration mode 2-3

interfaces

auto-MDIX, configuring 11-20

configuration guidelines

10-Gigabit Ethernet 11-17

duplex and speed 11-17

configuring

procedure 11-11

configuring for IPv4 and IPv6 36-13

counters, clearing 11-30

default configuration 11-15

described 11-24

descriptive name, adding 11-24

displaying information about 11-29

flow control 11-19

management 1-5

monitoring 11-28

naming 11-24

physical, identifying 11-10

range of 11-12

restarting 11-30

shutting down 11-30

speed and duplex, configuring 11-18

status 11-28

supported 11-10

types of 11-1

interfaces range macro command 11-13

interface types 11-10

Interior Gateway Protocol

See IGP

internal BGP

See IBGP

internal neighbors, BGP 35-47

Internet Control Message Protocol

See ICMP

Internet Group Management Protocol

See IGMP

Internet Protocol version 6

See IPv6

Inter-Switch Link

See ISL

inter-VLAN routing 1-11, 35-2

Intrusion Detection System

See IDS appliances

IP ACLs

for QoS classification 33-7

implicit deny 32-10, 32-14

implicit masks 32-10

named 32-15

undefined 32-21

IP addresses

128-bit 36-2

candidate or member 6-4, 6-13

classes of 35-7

cluster access 6-2

command switch 6-3, 6-11, 6-13

default configuration 35-6

discovering 7-27

for IP routing 35-5

IPv6 36-2

MAC address association 35-9

monitoring 35-18

redundant clusters 6-11

standby command switch 6-11, 6-13

See also IP information

IP base image 1-1

IP broadcast address 35-16

ip cef distributed command 35-75

IP directed broadcasts 35-14

ip igmp profile command 24-25

IP information

assigned

manually 3-10

through DHCP-based autoconfiguration 3-3

default configuration 3-3

IP multicast routing

addresses

all-hosts 40-3

all-multicast-routers 40-3

host group address range 40-3

administratively-scoped boundaries, described 40-36

and IGMP snooping 24-2

Auto-RP

adding to an existing sparse-mode cloud 40-15

benefits of 40-14

clearing the cache 40-52

configuration guidelines 40-10

filtering incoming RP announcement messages 40-17

overview 40-5

preventing candidate RP spoofing 40-17

preventing join messages to false RPs 40-16

setting up in a new internetwork 40-15

using with BSR 40-23

bootstrap router

configuration guidelines 40-10

configuring candidate BSRs 40-21

configuring candidate RPs 40-22

defining the IP multicast boundary 40-20

defining the PIM domain border 40-19

overview 40-5

using with Auto-RP 40-23

Cisco implementation 40-2

configuring

basic multicast routing 40-11

IP multicast boundary 40-36

default configuration 40-9

enabling

multicast forwarding 40-11

PIM mode 40-12

group-to-RP mappings

Auto-RP 40-5

BSR 40-5

MBONE

deleting sdr cache entries 40-52

described 40-35

displaying sdr cache 40-53

enabling sdr listener support 40-35

limiting DVMRP routes advertised 40-47

limiting sdr cache entry lifetime 40-35

SAP packets for conference session announcement 40-35

Session Directory (sdr) tool, described 40-35

monitoring

packet rate loss 40-53

peering devices 40-53

tracing a path 40-53

multicast forwarding, described 40-6

PIMv1 and PIMv2 interoperability 40-10

protocol interaction 40-2

reverse path check (RPF) 40-6

routing table

deleting 40-52

displaying 40-52

RP

assigning manually 40-13

configuring Auto-RP 40-14

configuring PIMv2 BSR 40-19

monitoring mapping information 40-24

using Auto-RP and BSR 40-23

stacking

stack master functions 40-8

stack member functions 40-8

statistics, displaying system and network 40-52

See also CGMP

See also DVMRP

See also IGMP

See also PIM

IP phones

and QoS 15-1

automatic classification and queueing 33-20

configuring 15-4

ensuring port security with QoS 33-39

trusted boundary for QoS 33-39

IP precedence 33-2

IP-precedence-to-DSCP map for QoS 33-62

IP protocols

in ACLs 32-12

routing 1-11

IP routes, monitoring 35-89

IP routing

connecting interfaces with 11-10

disabling 35-19

enabling 35-19

IP services image 1-1

IP source guard

and 802.1x 22-18

and DHCP snooping 22-16

and EtherChannels 22-18

and port security 22-18

and private VLANs 22-18

and routed ports 22-17

and TCAM entries 22-18

and trunk interfaces 22-17

and VRF 22-18

binding configuration

automatic 22-16

manual 22-16

binding table 22-16

configuration guidelines 22-17

default configuration 22-17

described 22-16

disabling 22-19

displaying

bindings 22-19

configuration 22-19

enabling 22-18

filtering

source IP address 22-16

source IP and MAC address 22-17

source IP address filtering 22-16

source IP and MAC address filtering 22-17

static bindings

adding 22-18

deleting 22-19

IP traceroute

executing 43-18

overview 43-17

IP unicast routing

address resolution 35-9

administrative distances 35-77, 35-87

ARP 35-9

assigning IP addresses to Layer 3 interfaces 35-7

authentication keys 35-88

broadcast

address 35-16

flooding 35-17

packets 35-14

storms 35-14

classless routing 35-8

configuring static routes 35-77

default

addressing configuration 35-6

gateways 35-12

networks 35-78

routes 35-78

routing 35-3

directed broadcasts 35-14

disabling 35-19

dynamic routing 35-3

enabling 35-19

EtherChannel Layer 3 interface 35-5

IGP 35-25

inter-VLAN 35-2

IP addressing

classes 35-7

configuring 35-5

IPv6 36-3

IRDP 35-12

Layer 3 interfaces 35-5

MAC address and IP address 35-9

passive interfaces 35-86

protocols

distance-vector 35-3

dynamic 35-3

link-state 35-3

proxy ARP 35-9

redistribution 35-79

reverse address resolution 35-9

routed ports 35-5

static routing 35-3

steps to configure 35-5

subnet mask 35-7

subnet zero 35-7

supernet 35-8

UDP 35-15

with SVIs 35-5

See also BGP

See also EIGRP

See also OSPF

See also RIP

IPv4 ACLs

applying to interfaces 32-20

extended, creating 32-11

named 32-15

standard, creating 32-10

IPv4 and IPv6

configuring on an interface 36-13

differences 36-2

dual protocol stacks 36-6

IPv6

ACLs

displaying 38-8

limitations 38-3

matching criteria 38-3

port 38-1

precedence 38-2

router 38-1

supported 38-2

addresses 36-2

address formats 36-2

advantages 36-2

and switch stacks 36-7

applications 36-5

assigning address 36-11

autoconfiguration 36-5

CEFv6 36-15

configuring static routes 36-16

default configuration 36-11

defined 36-1

enabling 36-11

feature limitations 36-7

features not supported 36-6

ICMP 36-4

ICMP rate limiting 36-15

monitoring 36-22

neighbor discovery 36-4

OSPF 36-20

path MTU discovery 36-4

reasons for 36-1

RIP 36-18

SDM templates 8-2, 36-8, 37-1, 38-1

stack master functions 36-8

supported features 36-3

switch limitations 36-7

IPv6 traffic, filtering 38-4

IRDP

configuring 35-13

definition 35-12

support for 1-11

ISL

and IPv6 36-3

and trunk ports 11-3

encapsulation 1-7, 13-16

trunking with IEEE 802.1 tunneling 17-5

isolated port 16-2

isolated VLANs 16-2, 16-3

J

join messages, IGMP 24-3

K

KDC

described 9-32

See also Kerberos

keepalive messages 18-2

Kerberos

authenticating to

boundary switch 9-34

KDC 9-34

network services 9-35

configuration examples 9-32

configuring 9-35

credentials 9-32

cryptographic software image 9-32

described 9-32

KDC 9-32

operation 9-34

realm 9-33

server 9-33

support for 1-9

switch as trusted third party 9-32

terms 9-33

TGT 9-34

tickets 9-32

key distribution center

See KDC

L

l2protocol-tunnel command 17-13

LACP

Layer 2 protocol tunneling 17-9

See EtherChannel

Layer 2 frames, classification with CoS 33-2

Layer 2 interfaces, default configuration 11-15

Layer 2 protocol tunneling

configuring 17-10

configuring for EtherChannels 17-14

default configuration 17-11

defined 17-8

guidelines 17-12

Layer 2 traceroute

and ARP 43-17

and CDP 43-16

broadcast traffic 43-16

described 43-16

IP addresses and subnets 43-17

MAC addresses and VLANs 43-16

multicast traffic 43-16

multiple devices on a port 43-17

unicast traffic 43-16

usage guidelines 43-16

Layer 3 features 1-11

Layer 3 interfaces

assigning IP addresses to 35-7

assigning IPv4 and IPv6 addresses to 36-13

assigning IPv6 addresses to 36-12

changing from Layer 2 mode 35-7

types of 35-5

Layer 3 packets, classification methods 33-2

LDAP 4-2

LEDs, switch

See hardware installation guide

lightweight directory access protocol

See LDAP

line configuration mode 2-3

Link Aggregation Control Protocol

See EtherChannel

Link Failure

detecting unidirectional 19-8

link local unicast addresses 36-3

link redundancy

See Flex Links

links, unidirectional 27-1

link state advertisements (LSAs) 35-30

link-state protocols 35-3

link-state tracking

configuring 34-25

described 34-23

load balancing 39-3

local SPAN 28-2

logging messages, ACL 32-9

login authentication

with RADIUS 9-23

with TACACS+ 9-14

login banners 7-17

log messages

See system message logging

Long-Reach Ethernet (LRE) technology 1-17, 1-25

loop guard

described 20-11

enabling 20-18

support for 1-7

LRE profiles, considerations in switch clusters 6-16

M

MAB aging timer

described 1-8

MAB inactivity timer

default setting 10-23

range 10-26

MAC addresses

aging time 7-21

and VLAN association 7-20

building the address table 7-20

default configuration 7-21

discovering 7-27

displaying 7-27

displaying in the IP source binding table 22-19

dynamic

learning 7-20

removing 7-22

in ACLs 32-27

IP address association 35-9

static

adding 7-25

allowing 7-26

characteristics of 7-24

dropping 7-26

removing 7-25

MAC address notification, support for 1-12

MAC address-table move update

configuration guidelines 21-4

configuring 21-6

default configuration 21-4

description 21-2

monitoring 21-9

MAC address-to-VLAN mapping 13-28

MAC authentication bypass

See MAB

MAC extended access lists

applying to Layer 2 interfaces 32-28

configuring for QoS 33-46

creating 32-27

defined 32-27

for QoS classification 33-5

macros

See Smartports macros

magic packet 10-18

manageability features 1-5

management access

in-band

browser session 1-6

CLI session 1-6

device manager 1-6

SNMP 1-6

out-of-band console port connection 1-6

management options

CLI 2-1

clustering 1-3

CNS 4-1

Network Assistant 1-2

overview 1-5

switch stacks 1-3

management VLAN

considerations in switch clusters 6-7

discovery through different management VLANs 6-7

mapping tables for QoS

configuring

CoS-to-DSCP 33-61

DSCP 33-61

DSCP-to-CoS 33-64

DSCP-to-DSCP-mutation 33-65

IP-precedence-to-DSCP 33-62

policed-DSCP 33-63

described 33-12

marking

action in policy map 33-49

action with aggregate policers 33-59

described 33-4, 33-8

matching

IPv6 ACLs 38-3

matching, IPv4 ACLs 32-7

maximum aging time

MSTP 19-24

STP 18-23

maximum hop count, MSTP 19-24

maximum-paths command 35-51, 35-76

MDA

configuration guidelines10-20to 10-21

described 1-8, 10-20

exceptions with authentication process 10-4

membership mode, VLAN port 13-3

member switch

automatic discovery 6-5

defined 6-2

managing 6-16

passwords 6-13

recovering from lost connectivity 43-12

requirements 6-4

See also candidate switch, cluster standby group, and standby command switch

messages

to users through banners 7-17

messages, to users through banners 7-17

metrics, in BGP 35-52

metric translations, between routing protocols 35-82

metro tags 17-2

MHSRP 39-3

MIBs

accessing files with FTP B-3

location of files B-3

overview 31-1

SNMP interaction with 31-4

supported B-1

mini-point-of-presence

See POP

mirroring traffic for analysis 28-1

mismatches, autonegotiation 43-12

module number 11-10

monitoring

access groups 32-40

BGP 35-63

cables for unidirectional links 27-1

CDP 26-5

CEF 35-76

EIGRP 35-42

fallback bridging 42-11

features 1-12

Flex Links 21-9

HSRP 39-11

IEEE 802.1Q tunneling 17-18

IGMP

filters 24-29

snooping 24-16, 37-11

interfaces 11-28

IP

address tables 35-18

multicast routing 40-51

routes 35-89

IPv4 ACL configuration 32-40

IPv6 36-22

IPv6 ACL configuration 38-8

Layer 2 protocol tunneling 17-18

MAC address-table move update 21-9

MSDP peers 41-19

multicast router interfaces 24-17, 37-12

multi-VRF CE 35-74

MVR 24-24

network traffic for analysis with probe 28-2

OSPF 35-34

port

blocking 25-17

protection 25-17

private VLANs 16-15

RP mapping information 40-24

SFP status 11-29, 43-14

source-active messages 41-19

speed and duplex mode 11-19

traffic flowing among switches 29-1

traffic suppression 25-17

tunneling 17-18

VLAN

filters 32-41

maps 32-41

VLANs 13-16

VMPS 13-32

VTP 14-16

more 10-44

MSDP

benefits of 41-3

clearing MSDP connections and statistics 41-19

controlling source information

forwarded by switch 41-12

originated by switch 41-9

received by switch 41-14

default configuration 41-4

dense-mode regions

sending SA messages to 41-17

specifying the originating address 41-18

filtering

incoming SA messages 41-14

SA messages to a peer 41-12

SA requests from a peer 41-11

join latency, defined 41-6

meshed groups

configuring 41-16

defined 41-16

originating address, changing 41-18

overview 41-1

peer-RPF flooding 41-2

peers

configuring a default 41-4

monitoring 41-19

peering relationship, overview 41-1

requesting source information from 41-8

shutting down 41-16

source-active messages

caching 41-6

clearing cache entries 41-19

defined 41-2

filtering from a peer 41-11

filtering incoming 41-14

filtering to a peer 41-12

limiting data with TTL 41-14

monitoring 41-19

restricting advertised sources 41-9

support for 1-11

MSTP

boundary ports

configuration guidelines 19-16

described 19-6

BPDU filtering

described 20-3

enabling 20-14

BPDU guard

described 20-2

enabling 20-13

CIST, described 19-3

CIST regional root 19-3

CIST root 19-5

configuration guidelines 19-15, 20-12

configuring

forward-delay time 19-23

hello time 19-22

link type for rapid convergence 19-24

maximum aging time 19-24

maximum hop count 19-24

MST region 19-16

configuring

neighbor type 19-25

path cost 19-21

port priority 19-19

root switch 19-17

secondary root switch 19-19

switch priority 19-22

CST

defined 19-3

operations between regions 19-4

default configuration 19-15

default optional feature configuration 20-12

displaying status 19-26

enabling the mode 19-16

EtherChannel guard

described 20-10

enabling 20-17

extended system ID

effects on root switch 19-17

effects on secondary root switch 19-19

unexpected behavior 19-18

IEEE 802.1s

implementation 19-6

port role naming change 19-7

terminology 19-5

instances supported 18-10

interface state, blocking to forwarding 20-2

interoperability and compatibility among modes 18-11

interoperability with IEEE 802.1D

described 19-9

restarting migration process 19-26

IST

defined 19-3

master 19-3

operations within a region 19-3

loop guard

described 20-11

enabling 20-18

mapping VLANs to MST instance      19-16

MST region

CIST 19-3

configuring 19-16

described 19-2

hop-count mechanism 19-5

IST 19-3

supported spanning-tree instances 19-2

optional features supported 1-7

overview 19-2

Port Fast

described 20-2

enabling 20-12

preventing root switch selection 20-10

root guard

described 20-10

enabling 20-17

root switch

configuring 19-18

effects of extended system ID 19-17

unexpected behavior 19-18

shutdown Port Fast-enabled port 20-2

stack changes, effects of 19-8

status, displaying 19-26

multicast groups

Immediate Leave 24-6

joining 24-3

leaving 24-5

static joins 24-11, 37-8

multicast packets

ACLs on 32-40

blocking 25-7

multicast router interfaces, monitoring 24-17, 37-12

multicast router ports, adding 24-10, 37-8

Multicast Source Discovery Protocol

See MSDP

multicast storm 25-1

multicast storm-control command 25-4

multicast television application 24-19

multicast VLAN 24-18

Multicast VLAN Registration

See MVR

multidomain authentication

See MDA

Multiple HSRP

See MHSRP

multiple VPN routing/forwarding in customer edge devices

See multi-VRF CE

multi-VRF CE

configuration example 35-70

configuration guidelines 35-67

configuring 35-66

default configuration 35-67

defined 35-64

displaying 35-74

monitoring 35-74

network components 35-66

packet-forwarding process 35-66

support for 1-11

MVR

and address aliasing 24-21

and IGMPv3 24-21

configuration guidelines 24-21

configuring interfaces 24-22

default configuration 24-20

described 24-18

example application 24-19

in the switch stack 24-20

modes 24-22

monitoring 24-24

multicast television application 24-19

setting global parameters 24-21

support for 1-4

N

NAC

AAA down policy 1-9

critical authentication 10-15, 10-37

IEEE 802.1x authentication using a RADIUS server 10-41

IEEE 802.1x validation using RADIUS server 10-41

inaccessible authentication bypass 1-9, 10-37

Layer 2 IEEE 802.1x validation 1-9, 10-41

Layer 2 IEEE802.1x validation 10-19

Layer 2 IP validation 1-9

named IPv4 ACLs 32-15

NameSpace Mapper

See NSM

native VLAN

and IEEE 802.1Q tunneling 17-4

configuring 13-23

default 13-23

neighbor discovery, IPv6 36-4

neighbor discovery/recovery, EIGRP 35-35

neighbors, BGP 35-58

Network Admission Control

NAC

Network Assistant

benefits 1-2

described 1-5

downloading image files 1-3

guide mode 1-3

management options 1-2

managing switch stacks 5-2, 5-16

requirements xliv

upgrading a switch C-19

wizards 1-3

network configuration examples

cost-effective wiring closet 1-17

high-performance wiring closet 1-18

increasing network performance 1-16

large network 1-23

long-distance, high-bandwidth transport 1-26

multidwelling network 1-25

providing network services 1-17

redundant Gigabit backbone 1-19

server aggregation and Linux server cluster 1-19

small to medium-sized network 1-21

network design

performance 1-16

services 1-17

network management

CDP 26-1

RMON 29-1

SNMP 31-1

Network Time Protocol

See NTP

no commands 2-4

nonhierarchical policy maps

configuration guidelines 33-33

configuring 33-49

described 33-9

non-IP traffic filtering 32-27

nontrunking mode 13-18

normal-range VLANs 13-4

configuration guidelines 13-6

configuration modes 13-7

configuring 13-4

defined 13-1

no switchport command 11-4

note, described xliv

not-so-stubby areas

See NSSA

NSM 4-3

NSSA, OSPF 35-30

NTP

associations

authenticating 7-4

defined 7-2

enabling broadcast messages 7-6

peer 7-5

server 7-5

default configuration 7-4

displaying the configuration 7-11

overview 7-2

restricting access

creating an access group 7-8

disabling NTP services per interface 7-10

source IP address, configuring 7-10

stratum 7-2

support for 1-6

synchronizing devices 7-5

time

services 7-2

synchronizing 7-2

O

object tracking, HSRP 39-17

offline configuration for switch stacks 5-7

online diagnostics

overview 44-1

running tests 44-3

understanding 44-1

Open Shortest Path First

See OSPF

optimizing system resources 8-1

options, management 1-5

OSPF

area parameters, configuring 35-30

configuring 35-28

default configuration

metrics 35-32

route 35-31

settings 35-26

described 35-25

for IPv6 36-20

interface parameters, configuring 35-29

LSA group pacing 35-33

monitoring 35-34

router IDs 35-33

route summarization 35-31

support for 1-11

virtual links 35-31

out-of-profile markdown 1-10

P

packet modification, with QoS 33-19

PAgP

Layer 2 protocol tunneling 17-9

See EtherChannel

parallel paths, in routing tables 35-76

passive interfaces

configuring 35-86

OSPF 35-32

passwords

default configuration 9-2

disabling recovery of 9-5

encrypting 9-3

for security 1-8

in clusters 6-14

overview 9-1

recovery of 43-3

setting

enable 9-3

enable secret 9-3

Telnet 9-6

with usernames 9-6

VTP domain 14-8

path cost

MSTP 19-21

STP 18-20

path MTU discovery 36-4

PBR

defined 35-82

enabling 35-84

fast-switched policy-based routing 35-85

local policy-based routing 35-85

PC (passive command switch) 6-10

peers, BGP 35-58

percentage thresholds in tracked lists 39-16

performance, network design 1-16

performance features 1-4

persistent self-signed certificate 9-43

per-VLAN spanning-tree plus

See PVST+

PE to CE routing, configuring 35-69

physical ports 11-2

PIM

default configuration 40-9

dense mode

overview 40-4

rendezvous point (RP), described 40-5

RPF lookups 40-7

displaying neighbors 40-52

enabling a mode 40-12

overview 40-4

router-query message interval, modifying 40-27

shared tree and source tree, overview 40-24

shortest path tree, delaying the use of 40-26

sparse mode

join messages and shared tree 40-5

overview 40-5

prune messages 40-5

RPF lookups 40-7

support for 1-11

PIM

versions

interoperability 40-10

troubleshooting interoperability problems 40-24

v2 improvements 40-4

PIM-DVMRP, as snooping method 24-9

ping

character output description 43-15

executing 43-15

overview 43-14

PoE

auto mode 11-8

CDP with power consumption, described 11-7

CDP with power negotiation, described 11-7

Cisco intelligent power management 11-7

configuring 11-21

devices supported 11-6

high-power devices operating in low-power mode 11-7

IEEE power classification levels 11-7

power budgeting 11-23

power consumption 11-23

powered-device detection and initial power allocation 11-7

power management modes 11-8

power negotiation extensions to CDP 11-7

standards supported 11-7

static mode 11-9

supported watts per port 11-6

troubleshooting 43-13

policed-DSCP map for QoS 33-63

policers

configuring

for each matched traffic class 33-49

for more than one traffic class 33-59

described 33-4

displaying 33-79

number of 33-34

types of 33-9

policing

described 33-4

hierarchical

See hierarchical policy maps

token-bucket algorithm 33-9

policy-based routing

See PBR

policy maps for QoS

characteristics of 33-49

described 33-7

displaying 33-80

hierarchical 33-8

hierarchical on SVIs

configuration guidelines 33-33

configuring 33-53

described 33-11

nonhierarchical on physical ports

configuration guidelines 33-33

configuring 33-49

described 33-9

POP 1-25

port ACLs

defined 32-2

types of 32-3

Port Aggregation Protocol

See EtherChannel

port-based authentication

accounting 10-9

authentication server

defined 10-2

RADIUS server 10-3

client, defined 10-2

configuration guidelines 10-23

configuring

802.1x authentication 10-26

guest VLAN 10-34

host mode 10-29

inaccessible authentication bypass 10-37

configuring

manual re-authentication of a client 10-30

periodic re-authentication 10-30

quiet period 10-31

RADIUS server 10-28

RADIUS server parameters on the switch 10-27

restricted VLAN 10-35

switch-to-client frame-retransmission number 10-32

switch-to-client retransmission time 10-31

default configuration 10-22

described 10-1

device roles 10-2

displaying statistics 10-46

EAPOL-start frame 10-5

EAP-request/identity frame 10-5

EAP-response/identity frame 10-5

encapsulation 10-3

guest VLAN

configuration guidelines 10-13, 10-14

described 10-13

host mode 10-8

inaccessible authentication bypass

configuring 10-37

described 10-15

guidelines 10-25

initiation and message exchange 10-5

magic packet 10-18

method lists 10-26

multiple-hosts mode, described 10-8

per-user ACLs

AAA authorization 10-26

configuration tasks 10-12

described 10-11

RADIUS server attributes 10-12

ports

authorization state and dot1x port-control command 10-7

authorized and unauthorized 10-7

critical 10-15

voice VLAN 10-16

port security

and voice VLAN 10-17

described 10-17

interactions 10-17

multiple-hosts mode 10-9

resetting to default values 10-45

stack changes, effects of 10-8

statistics, displaying 10-46

switch

as proxy 10-3

RADIUS client 10-3

upgrading from a previous release 10-26, 33-26

VLAN assignment

AAA authorization 10-26

characteristics 10-11

configuration tasks 10-11

described 10-10

voice VLAN

described 10-16

PVID 10-16

VVID 10-16

wake-on-LAN, described 10-18

port blocking 1-4, 25-7

port-channel

See EtherChannel

Port Fast

described 20-2

enabling 20-12

mode, spanning tree 13-29

support for 1-7

port membership modes, VLAN 13-3

port priority

MSTP 19-19

STP 18-18

ports

10-Gigabit Ethernet module 11-6

access 11-3

blocking 25-7

dynamic access 13-3

IEEE 802.1Q tunnel 13-4

protected 25-5

routed 11-4

secure 25-8

static-access 13-3, 13-11

switch 11-2

trunks 13-3, 13-16

VLAN assignments 13-11

port security

aging 25-15

and QoS trusted boundary 33-39

and stacking 25-17

configuring 25-12

default configuration 25-10

described 25-8

displaying 25-17

on trunk ports 25-13

sticky learning 25-9

violations 25-9

with other features 25-10

port-shutdown response, VMPS 13-28

Power over Ethernet

See PoE

preemption

default configuration 21-4

preemption delay

default configuration 21-4

preferential treatment of traffic

See QoS

prefix lists, BGP 35-55

preventing unauthorized access 9-1

primary links 21-2

primary VLANs 16-1, 16-3

priority

HSRP 39-7

overriding CoS 15-6

trusting CoS 15-6

private VLAN edge ports

See protected ports

private VLANs

across multiple switches 16-4

and SDM template 16-4

and SVIs 16-5

and switch stacks 16-6

benefits of 16-1

community ports 16-2

community VLANs 16-2, 16-3

configuration guidelines 16-7, 16-8

configuration tasks 16-6

configuring 16-10

default configuration 16-7

end station access to 16-3

IP addressing 16-3

isolated port 16-2

isolated VLANs 16-2, 16-3

mapping 16-14

monitoring 16-15

ports

community 16-2

configuration guidelines 16-8

configuring host ports 16-12

configuring promiscuous ports 16-13

described 13-4

isolated 16-2

promiscuous 16-2

primary VLANs 16-1, 16-3

promiscuous ports 16-2

secondary VLANs 16-2

subdomains 16-1

traffic in 16-5

privileged EXEC mode 2-2

privilege levels

changing the default for lines 9-9

command switch 6-17

exiting 9-9

logging into 9-9

mapping on member switches 6-17

overview 9-2, 9-7

setting a command with 9-8

promiscuous ports

configuring 16-13

defined 16-2

protected ports 1-8, 25-5

protocol-dependent modules, EIGRP 35-36

Protocol-Independent Multicast Protocol

See PIM

provider edge devices 35-65

provisioning new members for a switch stack 5-7

proxy ARP

configuring 35-11

definition 35-9

with IP routing disabled 35-12

pruning, VTP

disabling

in VTP domain 14-14

on a port 13-23

enabling

in VTP domain 14-14

on a port 13-22

examples 14-5

overview 14-4

pruning-eligible list

changing 13-22

for VTP pruning 14-5

VLANs 14-14

PVST+

described 18-10

IEEE 802.1Q trunking interoperability 18-11

instances supported 18-10

Q

QoS

and MQC commands 33-1

auto-QoS

categorizing traffic 33-21

configuration and defaults display 33-30

configuration guidelines 33-25

described 33-20

disabling 33-27

displaying generated commands 33-27

displaying the initial configuration 33-30

effects on running configuration 33-25

egress queue defaults 33-21

enabling for VoIP 33-26

example configuration 33-28

ingress queue defaults 33-21

list of generated commands 33-22

basic model 33-4

classification

class maps, described 33-7

defined 33-4

DSCP transparency, described 33-40

flowchart 33-6

forwarding treatment 33-3

in frames and packets 33-3

IP ACLs, described 33-5, 33-7

MAC ACLs, described 33-5, 33-7

options for IP traffic 33-5

options for non-IP traffic 33-5

policy maps, described 33-7

trust DSCP, described 33-5

trusted CoS, described 33-5

trust IP precedence, described 33-5

class maps

configuring 33-47

displaying 33-79

QoS

configuration guidelines

auto-QoS 33-25

standard QoS 33-33

configuring

aggregate policers 33-59

auto-QoS 33-20

default port CoS value 33-38

DSCP maps 33-61

DSCP transparency 33-40

DSCP trust states bordering another domain 33-41

egress queue characteristics 33-71

ingress queue characteristics 33-67

IP extended ACLs 33-45

IP standard ACLs 33-44

MAC ACLs 33-46

policy maps, hierarchical 33-53

policy maps on physical ports 33-49

port trust states within the domain 33-36

trusted boundary 33-39

default auto configuration 33-20

default standard configuration 33-31

displaying statistics 33-79

DSCP transparency 33-40

egress queues

allocating buffer space 33-72

buffer allocation scheme, described 33-18

configuring shaped weights for SRR 33-76

configuring shared weights for SRR 33-77

described 33-4

displaying the threshold map 33-75

flowchart 33-17

mapping DSCP or CoS values 33-74

scheduling, described 33-4

setting WTD thresholds 33-72

WTD, described 33-19

enabling globally 33-35

QoS

flowcharts

classification 33-6

egress queueing and scheduling 33-17

ingress queueing and scheduling 33-15

policing and marking 33-10

implicit deny 33-7

ingress queues

allocating bandwidth 33-69

allocating buffer space 33-69

buffer and bandwidth allocation, described 33-16

configuring shared weights for SRR 33-69

configuring the priority queue 33-70

described 33-4

displaying the threshold map 33-68

flowchart 33-15

mapping DSCP or CoS values 33-68

priority queue, described 33-16

scheduling, described 33-4

setting WTD thresholds 33-68

WTD, described 33-16

IP phones

automatic classification and queueing 33-20

detection and trusted settings 33-20, 33-39

limiting bandwidth on egress interface 33-78

mapping tables

CoS-to-DSCP 33-61

displaying 33-79

DSCP-to-CoS 33-64

DSCP-to-DSCP-mutation 33-65

IP-precedence-to-DSCP 33-62

policed-DSCP 33-63

types of 33-12

marked-down actions 33-51, 33-56

marking, described 33-4, 33-8

overview 33-2

packet modification 33-19

QoS

policers

configuring 33-51, 33-56, 33-59

described 33-8

displaying 33-79

number of 33-34

types of 33-9

policies, attaching to an interface 33-8

policing

described 33-4, 33-8

token bucket algorithm 33-9

policy maps

characteristics of 33-49

displaying 33-80

hierarchical 33-8

hierarchical on SVIs 33-53

nonhierarchical on physical ports 33-49

QoS label, defined 33-4

queues

configuring egress characteristics 33-71

configuring ingress characteristics 33-67

high priority (expedite) 33-19, 33-78

location of 33-13

SRR, described 33-14

WTD, described 33-13

rewrites 33-19

support for 1-9

trust states

bordering another domain 33-41

described 33-5

trusted device 33-39

within the domain 33-36

quality of service

See QoS

queries, IGMP 24-4

query solicitation, IGMP 24-13

R

RADIUS

attributes

vendor-proprietary 9-31

vendor-specific 9-29

configuring

accounting 9-28

authentication 9-23

authorization 9-27

communication, global 9-21, 9-29

communication, per-server 9-20, 9-21

multiple UDP ports 9-21

default configuration 9-20

defining AAA server groups 9-25

displaying the configuration 9-31

identifying the server 9-20

in clusters 6-16

limiting the services to the user 9-27

method list, defined 9-20

operation of 9-19

overview 9-18

suggested network environments 9-18

support for 1-9

tracking services accessed by user 9-28

range

macro 11-13

of interfaces 11-12

rapid convergence 19-10

rapid per-VLAN spanning-tree plus

See rapid PVST+

rapid PVST+

described 18-10

IEEE 802.1Q trunking interoperability 18-11

instances supported 18-10

Rapid Spanning Tree Protocol

See RSTP

RARP 35-9

rcommand command 6-16

RCP

configuration files

downloading C-17

overview C-15

preparing the server C-16

uploading C-18

image files

deleting old image C-32

downloading C-31

preparing the server C-30

uploading C-32

reconfirmation interval, VMPS, changing 13-31

reconfirming dynamic VLAN membership 13-31

recovery procedures 43-1

redundancy

EtherChannel 34-3

HSRP 39-1

STP

backbone 18-9

multidrop backbone 20-5

path cost 13-26

port priority 13-24

redundant links and UplinkFast 20-15

reliable transport protocol, EIGRP 35-35

reloading software 3-16

Remote Authentication Dial-In User Service

See RADIUS

Remote Copy Protocol

See RCP

Remote Network Monitoring

See RMON

Remote SPAN

See RSPAN

remote SPAN 28-3

report suppression, IGMP

described 24-6

disabling 24-16, 37-11

requirements

cluster xlv

device manager xliv

Network Assistant xliv

resequencing ACL entries 32-15

resets, in BGP 35-50

resetting a UDLD-shutdown interface 27-6

restricted VLAN

configuring 10-35

described 10-14

using with IEEE 802.1x 10-14

restricting access

NTP services 7-8

overview 9-1

passwords and privilege levels 9-2

RADIUS 9-17

TACACS+ 9-10

retry count, VMPS, changing 13-32

reverse address resolution 35-9

Reverse Address Resolution Protocol

See RARP

RFC

1058, RIP 35-19

1112, IP multicast and IGMP 24-2

1157, SNMPv1 31-2

1163, BGP 35-43

1166, IP addresses 35-7

1253, OSPF 35-25

1267, BGP 35-43

1305, NTP 7-2

1587, NSSAs 35-25

1757, RMON 29-2

1771, BGP 35-43

1901, SNMPv2C 31-2

1902 to 1907, SNMPv2 31-2

2236, IP multicast and IGMP 24-2

2273-2275, SNMPv3 31-2

RIP

advertisements 35-20

authentication 35-22

configuring 35-21

default configuration 35-20

described 35-20

for IPv6 36-18

hop counts 35-20

split horizon 35-23

summary addresses 35-23

support for 1-11

RMON

default configuration 29-3

displaying status 29-6

enabling alarms and events 29-3

groups supported 29-2

overview 29-1

statistics

collecting group Ethernet 29-5

collecting group history 29-5

support for 1-12

root guard

described 20-10

enabling 20-17

support for 1-7

root switch

MSTP 19-17

STP 18-16

route calculation timers, OSPF 35-32

route dampening, BGP 35-62

routed packets, ACLs on 32-39

routed ports

configuring 35-5

defined 11-4

in switch clusters 6-8

IP addresses on 11-25, 35-5

route-map command 35-85

route maps

BGP 35-53

policy-based routing 35-83

router ACLs

defined 32-2

types of 32-4

route reflectors, BGP 35-61

router ID, OSPF 35-33

route selection, BGP 35-51

route summarization, OSPF 35-31

route targets, VPN 35-66

routing

default 35-3

dynamic 35-3

redistribution of information 35-79

static 35-3

routing domain confederation, BGP 35-60

Routing Information Protocol

See RIP

routing protocol administrative distances 35-77

RSPAN 28-3

and stack changes 28-10

characteristics 28-9

configuration guidelines 28-18

default configuration 28-11

destination ports 28-8

displaying status 28-25

in a switch stack 28-2

interaction with other features 28-9

monitored ports 28-6

monitoring ports 28-8

overview 1-12, 28-1

received traffic 28-5

session limits 28-11

sessions

creating 28-19

defined 28-4

limiting source traffic to specific VLANs 28-24

specifying monitored ports 28-19

with ingress traffic enabled 28-22

source ports 28-6

transmitted traffic 28-6

VLAN-based 28-7

RSTP

active topology 19-10

BPDU

format 19-12

processing 19-13

designated port, defined 19-9

designated switch, defined 19-9

interoperability with IEEE 802.1D

described 19-9

restarting migration process 19-26

topology changes 19-13

overview 19-9

port roles

described 19-9

synchronized 19-11

proposal-agreement handshake process 19-10

rapid convergence

cross-stack rapid convergence 19-11

described 19-10

edge ports and Port Fast 19-10

point-to-point links 19-10, 19-24

root ports 19-10

root port, defined 19-9

See also MSTP

running configuration, saving 3-10

S

SC (standby command switch) 6-10

scheduled reloads 3-16

SDM

described 8-1

switch stack consideration 5-10

templates

configuring 8-6

number of 8-1

SDM mismatch mode 5-10, 8-4

SDM template

aggregator 8-1

configuration guidelines 8-5

configuring 8-4

desktop 8-1

dual IPv4 and IPv6 8-2

types of 8-1

secondary VLANs 16-2

secure HTTP client

configuring 9-47

displaying 9-48

secure HTTP server

configuring 9-46

displaying 9-48

secure MAC addresses

and switch stacks 25-17

deleting 25-14

maximum number of 25-9

types of 25-8

secure ports

and switch stacks 25-17

configuring 25-8

secure remote connections 9-38

Secure Shell

See SSH

Secure Socket Layer

See SSL

security, port 25-8

security features 1-8

sequence numbers in log messages 30-8

server mode, VTP 14-3

service-provider network, MSTP and RSTP 19-1

service-provider networks

and customer VLANs 17-2

and IEEE 802.1Q tunneling 17-1

Layer 2 protocols across 17-8

Layer 2 protocol tunneling for EtherChannels 17-9

set-request operation 31-5

setup program

failed command switch replacement 43-11

replacing failed command switch 43-9

severity levels, defining in system messages 30-9

SFPs

monitoring status of 11-29, 43-14

numbering of 11-11

security and identification 43-13

status, displaying 43-14

shaped round robin

See SRR

show access-lists hw-summary command 32-22

show and more command output, filtering 2-10

show cdp traffic command 26-5

show cluster members command 6-16

show configuration command 11-24

show forward command 43-22

show interfaces command 11-19, 11-24

show l2protocol command 17-13, 17-15, 17-16

show platform forward command 43-22

show running-config command

displaying ACLs 32-20, 32-21, 32-31, 32-34

interface description in 11-24

shutdown command on interfaces 11-30

shutdown threshold for Layer 2 protocol packets 17-11

Simple Network Management Protocol

See SNMP

small form-factor pluggable modules

See SFPs

Smartports macros

applying Cisco-default macros 12-6

applying global parameter values 12-5, 12-6

applying macros 12-5

applying parameter values 12-5, 12-7

configuration guidelines 12-3

creating 12-4

default configuration 12-2

defined 12-1

displaying 12-8

tracing 12-3

website 12-2

SNAP 26-1

SNMP

accessing MIB variables with 31-4

agent

described 31-4

disabling 31-8

authentication level 31-11

community strings

configuring 31-8

for cluster switches 31-4

overview 31-4

configuration examples 31-16

default configuration 31-7

engine ID 31-7

groups 31-7, 31-10

host 31-7

ifIndex values 31-6

in-band management 1-6

in clusters 6-14

informs

and trap keyword 31-12

described 31-5

differences from traps 31-5

disabling 31-15

enabling 31-15

limiting access by TFTP servers 31-16

limiting system log messages to NMS 30-10

manager functions 1-5, 31-3

managing clusters with 6-17

MIBs

location of B-3

supported B-1

notifications 31-5

overview 31-1, 31-4

security levels 31-3

status, displaying 31-17

system contact and location 31-15

trap manager, configuring 31-14

traps

described 31-3, 31-5

differences from informs 31-5

disabling 31-15

enabling 31-12

enabling MAC address notification 7-22

overview 31-1, 31-5

types of 31-12

users 31-7, 31-10

versions supported 31-2

SNMPv1 31-2

SNMPv2C 31-2

SNMPv3 31-2

snooping, IGMP 24-2

software compatibility

See stacks, switch

software images

location in flash C-20

recovery procedures 43-2

scheduling reloads 3-17

tar file format, described C-20

See also downloading and uploading

source addresses

in IPv6 ACLs 38-5

source addresses, in IPv4 ACLs 32-12

source-and-destination-IP address based forwarding, EtherChannel 34-9

source-and-destination MAC address forwarding, EtherChannel 34-8

source-IP address based forwarding, EtherChannel 34-9

source-MAC address forwarding, EtherChannel 34-8

SPAN

and stack changes 28-10

configuration guidelines 28-11

default configuration 28-11

destination ports 28-8

displaying status 28-25

interaction with other features 28-9

monitored ports 28-6

monitoring ports 28-8

overview 1-12, 28-1

ports, restrictions 25-11

received traffic 28-5

session limits 28-11

sessions

configuring ingress forwarding 28-16, 28-23

creating 28-12

defined 28-4

limiting source traffic to specific VLANs 28-16

removing destination (monitoring) ports 28-14

specifying monitored ports 28-12

with ingress traffic enabled 28-15

source ports 28-6

transmitted traffic 28-6

VLAN-based 28-7

spanning tree and native VLANs 13-19

Spanning Tree Protocol

See STP

SPAN traffic 28-5

split horizon, RIP 35-23

SRR

configuring

shaped weights on egress queues 33-76

shared weights on egress queues 33-77

shared weights on ingress queues 33-69

SRR

described 33-14

shaped mode 33-14

shared mode 33-14

support for 1-10

SSH

configuring 9-39

cryptographic software image 9-37

described 1-6, 9-38

encryption methods 9-38

switch stack considerations 5-16, 9-38

user authentication methods, supported 9-39

SSL

configuration guidelines 9-45

configuring a secure HTTP client 9-47

configuring a secure HTTP server 9-46

cryptographic software image 9-42

described 9-42

monitoring 9-48

stack, switch

MAC address of 5-19

stack changes

effects on

IPv6 routing 36-8

stack changes, effects on

802.1x port-based authentication 10-8

ACL configuration 32-7

CDP 26-2

cross-stack EtherChannel 34-13

EtherChannel 34-10

fallback bridging 42-3

HSRP 39-4

IGMP snooping 24-7

IP routing 35-4

IPv6 ACLs 38-3

MAC address tables 7-21

MSTP 19-8

multicast routing 40-8

MVR 24-18

port security 25-17

SDM template selection 8-3

SNMP 31-1

SPAN and RSPAN 28-10

STP 18-12

switch clusters 6-15

system message log 30-2

VLANs 13-6

VTP 14-6

stack master

bridge ID (MAC address) 5-6

defined 5-1

election 5-4

IPv6 36-8

re-election 5-4

See also stacks, switch

stack member

accessing CLI of specific member 5-25

configuring

member number 5-22

priority value 5-22

defined 5-1

displaying information of 5-25

IPv6 36-8

number 5-6

priority value 5-7

provisioning a new member 5-23

replacing 5-15

See also stacks, switch

stack member number 11-10

stack protocol version 5-10

stacks, switch

accessing CLI of specific member 5-25

assigning information

member number 5-22

priority value 5-22

provisioning a new member 5-23

auto-advise 5-12

auto-copy 5-11

auto-extract 5-11

auto-upgrade 5-11

benefits 1-2

bridge ID 5-6

CDP considerations 26-2

compatibility, software 5-10

configuration file 5-14

configuration scenarios 5-17

copying an image file from one member to another C-33

default configuration 5-19

description of 5-1

displaying information of 5-25

enabling persistent MAC address timer 5-19

hardware compatibility and SDM mismatch mode 5-10

HSRP considerations 39-4

in clusters 6-15

incompatible software and image upgrades 5-14, C-33

IPv6 on 36-7

MAC address considerations 7-21

management connectivity 5-16

managing 5-1

membership 5-3

merged 5-3

MSTP instances supported 18-10

multicast routing, stack master and member roles 40-8

offline configuration

described 5-7

effects of adding a provisioned switch 5-8

effects of removing a provisioned switch 5-9

effects of replacing a provisioned switch 5-9

provisioned configuration, defined 5-7

provisioned switch, defined 5-7

provisioning a new member 5-23

partitioned 5-3, 43-8

provisioned switch

adding 5-8

removing 5-9

replacing 5-9

replacing a failed member 5-15

software compatibility 5-10

software image version 5-10

stack protocol version 5-10

STP

bridge ID 18-3

instances supported 18-10

root port selection 18-3

stack root switch election 18-3

system messages

hostnames in the display 30-1

remotely monitoring 30-2

system prompt consideration 7-14

system-wide configuration considerations 5-15

upgrading C-33

version-mismatch (VM) mode

automatic upgrades with auto-upgrade 5-11

described 5-11

examples 5-12

manual upgrades with auto-advise 5-12

upgrades with auto-extract 5-11

See also stack master and stack member

StackWise technology, Cisco 1-3

See also stacks, switch

standby command switch

configuring

considerations 6-11

defined 6-2

priority 6-10

requirements 6-3

virtual IP address 6-11

See also cluster standby group and HSRP

standby group, cluster

See cluster standby group and HSRP

standby ip command 39-5

standby links 21-2

standby router 39-1

standby timers, HSRP 39-9

startup configuration

booting

manually 3-13

specific image 3-14

clearing C-19

configuration file

automatically downloading 3-12

specifying the filename 3-12

default boot configuration 3-12

stateless autoconfiguration 36-5

static access ports

assigning to VLAN 13-11

defined 11-3, 13-3

static addresses

See addresses

static IP routing 1-11

static MAC addressing 1-8

static routes

configuring 35-77

configuring for IPv6 36-16

static routing 35-3

static VLAN membership 13-2

statistics

802.1x 10-46

CDP 26-5

interface 11-29

IP multicast routing 40-52

OSPF 35-34

QoS ingress and egress 33-79

RMON group Ethernet 29-5

RMON group history 29-5

SNMP input and output 31-17

VTP 14-16

sticky learning 25-9

storm control

configuring 25-3

described 25-1

disabling 25-5

displaying 25-17

support for 1-4

thresholds 25-1

STP

accelerating root port selection 20-4

BackboneFast

described 20-7

disabling 20-17

enabling 20-16

BPDU filtering

described 20-3

disabling 20-15

enabling 20-14

BPDU guard

described 20-2

disabling 20-14

enabling 20-13

BPDU message exchange 18-3

configuration guidelines 18-13, 20-12

configuring

forward-delay time 18-23

hello time 18-22

maximum aging time 18-23

path cost 18-20

port priority 18-18

root switch 18-16

secondary root switch 18-18

spanning-tree mode 18-15

switch priority 18-21

transmit hold-count 18-24

counters, clearing 18-24

cross-stack UplinkFast

described 20-5

enabling 20-16

default configuration 18-13

STP

default optional feature configuration 20-12

designated port, defined 18-4

designated switch, defined 18-4

detecting indirect link failures 20-8

disabling 18-16

displaying status 18-24

EtherChannel guard

described 20-10

disabling 20-17

enabling 20-17

extended system ID

effects on root switch 18-16

effects on the secondary root switch 18-18

overview 18-4

unexpected behavior 18-16

features supported 1-6

IEEE 802.1D and bridge ID 18-4

IEEE 802.1D and multicast addresses 18-9

IEEE 802.1t and VLAN identifier 18-5

inferior BPDU 18-3

instances supported 18-10

interface state, blocking to forwarding 20-2

interface states

blocking 18-7

disabled 18-8

forwarding 18-6, 18-7

learning 18-7

listening 18-7

overview 18-5

interoperability and compatibility among modes 18-11

keepalive messages 18-2

Layer 2 protocol tunneling 17-8

limitations with IEEE 802.1Q trunks 18-11

load sharing

overview 13-24

using path costs 13-26

using port priorities 13-24

STP

loop guard

described 20-11

enabling 20-18

modes supported 18-10

multicast addresses, effect of 18-9

optional features supported 1-7

overview 18-2

path costs 13-26, 13-27

Port Fast

described 20-2

enabling 20-12

port priorities 13-25

preventing root switch selection 20-10

protocols supported 18-10

redundant connectivity 18-9

root guard

described 20-10

enabling 20-17

root port, defined 18-3

root port selection on a switch stack 18-3

root switch

configuring 18-16

effects of extended system ID 18-4, 18-16

election 18-3

unexpected behavior 18-16

shutdown Port Fast-enabled port 20-2

stack changes, effects of 18-12

status, displaying 18-24

superior BPDU 18-3

timers, described 18-22

UplinkFast

described 20-3

enabling 20-15

VLAN-bridge 18-11

stratum, NTP 7-2

stub areas, OSPF 35-30

stub routing, EIGRP 35-41

subdomains, private VLAN 16-1

subnet mask 35-7

subnet zero 35-7

success response, VMPS 13-28

summer time 7-13

SunNet Manager 1-5

supernet 35-8

SVIs

and IP unicast routing 35-5

and router ACLs 32-4

connecting VLANs 11-9

defined 11-5

routing between VLANs 13-2

switch clustering technology 6-1

See also clusters, switch

switch console port 1-6

Switch Database Management

See SDM

switched packets, ACLs on 32-38

Switched Port Analyzer

See SPAN

switched ports 11-2

switchport block multicast command 25-7

switchport block unicast command 25-7

switchport command 11-16

switchport mode dot1q-tunnel command 17-6

switchport protected command 25-6

switch priority

MSTP 19-22

STP 18-21

switch software features 1-1

switch stacks

Catalyst 3750G wireless LAN controller switch A-2

switch virtual interface

See SVI

synchronization, BGP 35-47

syslog

See system message logging

system clock

configuring

daylight saving time 7-13

manually 7-11

summer time 7-13

time zones 7-12

displaying the time and date 7-12

overview 7-1

See also NTP

system message logging

default configuration 30-4

defining error message severity levels 30-9

disabling 30-4

displaying the configuration 30-14

enabling 30-5

facility keywords, described 30-14

level keywords, described 30-10

limiting messages 30-10

message format 30-2

overview 30-1

sequence numbers, enabling and disabling 30-8

setting the display destination device 30-5

stack changes, effects of 30-2

synchronizing log messages 30-6

syslog facility 1-12

time stamps, enabling and disabling 30-8

UNIX syslog servers

configuring the daemon 30-12

configuring the logging facility 30-13

facilities supported 30-14

system MTU and IEEE 802.1Q tunneling 17-5

system name

default configuration 7-15

default setting 7-15

manual configuration 7-15

See also DNS

system prompt, default setting 7-14, 7-15

system resources, optimizing 8-1

T

TACACS+

accounting, defined 9-11

authentication, defined 9-11

authorization, defined 9-11

configuring

accounting 9-17

authentication key 9-13

authorization 9-16

login authentication 9-14

default configuration 9-13

displaying the configuration 9-17

identifying the server 9-13

in clusters 6-16

limiting the services to the user 9-16

operation of 9-12

overview 9-10

support for 1-9

tracking services accessed by user 9-17

tagged packets

IEEE 802.1Q 17-3

Layer 2 protocol 17-8

tar files

creating C-6

displaying the contents of C-7

extracting C-7

image file format C-20

TDR 1-12

Telnet

accessing management interfaces 2-11

number of connections 1-6

setting a password 9-6

templates, SDM 8-2

temporary self-signed certificate 9-43

Terminal Access Controller Access Control System Plus

See TACACS+

terminal lines, setting a password 9-6

TFTP

configuration files

downloading C-11

preparing the server C-10

uploading C-12

configuration files in base directory 3-6

configuring for autoconfiguration 3-6

image files

deleting C-24

downloading C-22

preparing the server C-22

uploading C-24

limiting access by servers 31-16

TFTP server 1-5

threshold, traffic level 25-2

time

See NTP and system clock

Time Domain Reflector

See TDR

time-range command 32-17

time ranges in ACLs 32-17

time stamps in log messages 30-8

time zones 7-12

Token Ring VLANs

support for 13-6

VTP support 14-4

ToS 1-10

traceroute, Layer 2

and ARP 43-17

and CDP 43-16

broadcast traffic 43-16

described 43-16

IP addresses and subnets 43-17

MAC addresses and VLANs 43-16

multicast traffic 43-16

multiple devices on a port 43-17

unicast traffic 43-16

usage guidelines 43-16

traceroute command 43-18

See also IP traceroute

tracked lists

configuring 39-14

types 39-14

tracked objects

by Boolean expression 39-14

by threshold percentage 39-16

by threshold weight 39-15

tracking interface line-protocol state 39-13

tracking IP routing state 39-13

tracking objects 39-12

tracking process 39-12

traffic

blocking flooded 25-7

fragmented 32-5

fragmented IPv6 38-2

unfragmented 32-5

traffic policing 1-10

traffic suppression 25-1

transmit hold-count

see STP

transparent mode, VTP 14-3, 14-12

trap-door mechanism 3-2

traps

configuring MAC address notification 7-22

configuring managers 31-12

defined 31-3

enabling 7-22, 31-12

notification types 31-12

overview 31-1, 31-5

troubleshooting

connectivity problems 43-14, 43-16, 43-17

detecting unidirectional links 27-1

displaying crash information 43-24

PIMv1 and PIMv2 interoperability problems 40-24

setting packet forwarding 43-22

SFP security and identification 43-13

show forward command 43-22

with CiscoWorks 31-4

with debug commands 43-20

with ping 43-14

with system message logging 30-1

with traceroute 43-17

trunk failover

See link-state tracking

trunking encapsulation 1-7

trunk ports

configuring 13-20

defined 11-3, 13-3

encapsulation 13-20, 13-25, 13-27

trunks

allowed-VLAN list 13-21

configuring 13-20, 13-25, 13-27

ISL 13-16

load sharing

setting STP path costs 13-26

using STP port priorities 13-24, 13-25

native VLAN for untagged traffic 13-23

parallel 13-26

pruning-eligible list 13-22

to non-DTP device 13-17

trusted boundary for QoS 33-39

trusted port states

between QoS domains 33-41

classification options 33-5

ensuring port security for IP phones 33-39

support for 1-10

within a QoS domain 33-36

trustpoints, CA 9-42

tunneling

defined 17-1

IEEE 802.1Q 17-1

Layer 2 protocol 17-8

tunnel ports

defined 13-4

described 11-4, 17-1

IEEE 802.1Q, configuring 17-6

incompatibilities with other features 17-6

twisted-pair Ethernet, detecting unidirectional links 27-1

type of service

See ToS

U

UDLD

configuration guidelines 27-4

default configuration 27-4

disabling

globally 27-5

on fiber-optic interfaces 27-5

per interface 27-6

echoing detection mechanism 27-3

enabling

globally 27-5

per interface 27-6

Layer 2 protocol tunneling 17-10

link-detection mechanism 27-1

neighbor database 27-2

overview 27-1

resetting an interface 27-6

status, displaying 27-7

support for 1-6

UDP, configuring 35-15

unauthorized ports with IEEE 802.1x 10-7

unicast MAC address filtering 1-5

and adding static addresses 7-26

and broadcast MAC addresses 7-25

and CPU packets 7-25

and multicast addresses 7-25

and router MAC addresses 7-25

configuration guidelines 7-25

described 7-25

unicast storm 25-1

unicast storm control command 25-4

unicast traffic, blocking 25-7

UniDirectional Link Detection protocol

See UDLD

UNIX syslog servers

daemon configuration 30-12

facilities supported 30-14

message logging configuration 30-13

unrecognized Type-Length-Value (TLV) support 14-4

upgrading information

See release notes

upgrading software images

See downloading

UplinkFast

described 20-3

disabling 20-16

enabling 20-15

support for 1-6

uploading

configuration files

preparing C-10, C-13, C-16

reasons for C-9

using FTP C-14

using RCP C-18

using TFTP C-12

image files

preparing C-22, C-25, C-30

reasons for C-20

using FTP C-28

using RCP C-32

using TFTP C-24

User Datagram Protocol

See UDP

user EXEC mode 2-2

username-based authentication 9-6

V

version-dependent transparent mode 14-4

version-mismatch (VM) mode

automatic upgrades with auto-upgrade 5-11

described 5-11

displaying 5-11

manual upgrades with auto-advise 5-12

upgrades with auto-extract 5-11

virtual IP address

cluster standby group 6-11

command switch 6-11

Virtual Private Network

See VPN

virtual router 39-1, 39-2

vlan.dat file 13-5

VLAN 1, disabling on a trunk port 13-22

VLAN 1 minimization 13-21

VLAN ACLs

See VLAN maps

vlan-assignment response, VMPS 13-28

VLAN configuration

at bootup 13-8

saving 13-8

VLAN configuration mode 2-2, 13-7

VLAN database

and startup configuration file 13-8

and VTP 14-1

VLAN configuration saved in 13-7

VLANs saved in 13-4

vlan database command 13-7

vlan dot1q tag native command 17-5

VLAN filtering and SPAN 28-7

vlan global configuration command 13-7

VLAN ID, discovering 7-27

VLAN management domain 14-2

VLAN Management Policy Server

See VMPS

VLAN map entries, order of 32-30

VLAN maps

applying 32-34

common uses for 32-34

configuration guidelines 32-30

configuring 32-29

creating 32-31

defined 32-2

denying access to a server example 32-35

denying and permitting packets 32-31

displaying 32-41

examples of ACLs and VLAN maps 32-32

removing 32-34

support for 1-8

wiring closet configuration example 32-35

VLAN membership

confirming 13-31

modes 13-3

VLAN Query Protocol

See VQP

VLANs

adding 13-9

adding to VLAN database 13-9

aging dynamic addresses 18-10

allowed on trunk 13-21

and spanning-tree instances 13-3, 13-6, 13-13

configuration guidelines, extended-range VLANs 13-13

configuration guidelines, normal-range VLANs 13-6

configuration options 13-7

configuring 13-1

configuring IDs 1006 to 4094 13-13

connecting through SVIs 11-9

creating in config-vlan mode 13-9

creating in VLAN configuration mode 13-10

customer numbering in service-provider networks 17-3

default configuration 13-8

deleting 13-10

described 11-2, 13-1

displaying 13-16

extended-range 13-1, 13-12

features 1-7

illustrated 13-2

internal 13-13

in the switch stack 13-6

limiting source traffic with RSPAN 28-24

limiting source traffic with SPAN 28-16

modifying 13-9

multicast 24-18

native, configuring 13-23

normal-range 13-1, 13-4

number supported 1-7

parameters 13-5

port membership modes 13-3

static-access ports 13-11

STP and IEEE 802.1Q trunks 18-11

supported 13-2

Token Ring 13-6

traffic between 13-2

VLAN-bridge STP 18-11, 42-2

VTP modes 14-3

VLAN Trunking Protocol

See VTP

VLAN trunks 13-16

VMPS

administering 13-32

configuration example 13-33

configuration guidelines 13-29

default configuration 13-29

description 13-28

dynamic port membership

described 13-29

reconfirming 13-31

troubleshooting 13-33

entering server address 13-30

mapping MAC addresses to VLANs 13-28

monitoring 13-32

reconfirmation interval, changing 13-31

reconfirming membership 13-31

retry count, changing 13-32

voice-over-IP 15-1

voice VLAN

Cisco 7960 phone, port connections 15-1

configuration guidelines 15-3

configuring IP phones for data traffic

override CoS of incoming frame 15-6

trust CoS priority of incoming frame 15-6

configuring ports for voice traffic in

802.1p priority tagged frames 15-5

802.1Q frames 15-5

connecting to an IP phone 15-4

default configuration 15-3

described 15-1

displaying 15-6

IP phone data traffic, described 15-2

IP phone voice traffic, described 15-2

VPN

configuring routing in 35-69

forwarding 35-67

in service provider networks 35-64

routes 35-65

VPN routing and forwarding table

See VRF

VQP 1-7, 13-28

VRF

defining 35-66

tables 35-64

VTP

adding a client to a domain 14-14

advertisements 13-19, 14-3

and extended-range VLANs 14-2

and normal-range VLANs 14-2

client mode, configuring 14-11

VTP

configuration

global configuration mode 14-7

guidelines 14-8

privileged EXEC mode 14-7

requirements 14-9

saving 14-7

VLAN configuration mode 14-8

configuration mode options 14-7

configuration requirements 14-9

configuration revision number

guideline 14-14

resetting 14-15

configuring

client mode 14-11

server mode 14-9

transparent mode 14-12

consistency checks 14-4

default configuration 14-7

described 14-1

disabling 14-12

domain names 14-8

domains 14-2

Layer 2 protocol tunneling 17-8

modes

client 14-3, 14-11

server 14-3, 14-9

transitions 14-3

transparent 14-3, 14-12

monitoring 14-16

passwords 14-8

pruning

disabling 14-14

enabling 14-14

examples 14-5

overview 14-4

support for 1-7

pruning-eligible list, changing 13-22

VTP

server mode, configuring 14-9

statistics 14-16

support for 1-7

Token Ring support 14-4

transparent mode, configuring 14-12

using 14-1

version, guidelines 14-9

Version 1 14-4

Version 2

configuration guidelines 14-9

disabling 14-13

enabling 14-13

overview 14-4

W

web authentication

configuring10-41to 10-44

described 1-8, 10-21

fallback for IEEE 802.1x 10-43

weighted tail drop

See WTD

weight thresholds in tracked lists 39-15

wireless LAN controlle A-1

wireless LAN controller A-3

wizards 1-3

WTD

described 33-13

setting thresholds

egress queue-sets 33-72

ingress queues 33-68

support for 1-10

X

Xmodem protocol 43-2